In Malaysia, most people, both rich and poor, just like to litter, even just outside the fence of their house.
This is because most Malaysians are lazy.
Some people despise cleaning tasks and will not be involved in it, but they still litter to make the neighbourhood dirtier.
Rubbish is everywhere, upsetting foreign tourists.
Tourists should not come here unless the purpose is to see how dirty this place is.
Foreign countries should screen potential immigrants from Malaysia for litterbugs before approving them.

They especially like to litter into drains, creeks, rivers and the sea.
Many aquatic animals have greatly reduced in number.
There is no seaside without rubbish.
Drains stink.

When they kill a mouse, they will just litter it without burying it.
When they go jungle hiking, they will leave their rubbish there.
After an event or a night market, there surely be a lot of rubbish on the street.
Most Malaysians hate to be corrected so they will challenge a "no littering" signage by littering just under the signage.
There is a strange phenomenon: when a few pieces of rubbish stay at one spot for some time, that spot will eventually become a rubbish dump.

Selfish drivers just throw rubbish out of the car.
Accidents happen when the rubbish block the view of other road users.
Burning cigarette butts thrown out of the car also spook motorcyclists, causing them to lose balance.

Dengue fever is quite rampant in Malaysia.
This is because blockade in drains favours mosquito breeding.
Accumulation of rainwater in littered bottles and cans also contributes to the breeding.

Toxic dumps are common.
There have been a number of environmental incidents.
Toxic wastes are drained into source of drinking water, causing water supply disruption.
Residents near to the toxic dump are affected by cancer and birth defects.